/**
 * Copyright (c) 2015-2018, Michael Yang 杨福海 (fuhai999@gmail.com).
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * <p>
 *  http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.jboot.component.opentracing;

import io.opentracing.Span;

/**
 * openTracing span 的上下文
 */
public class JbootSpanContext {
    private static ThreadLocal<Span> spans = new ThreadLocal<>();


    public static void add(Span span) {
        spans.set(span);
    }

    public static Span get() {
        return spans.get();
    }

    public static void release() {
        spans.remove();
    }
}
